[mod_python] can't seem to expire a cookie value

Graham Dumpleton graham.dumpleton at gmail.com
Mon Jan 21 22:34:51 EST 2008


What Cookie header gets sent by the browser on the request after you
have tried to expire it. Ie., dump out values of req.headers_in form
request handler to see what is passed in.

Graham

On 22/01/2008, Matt Barnicle <mattb at wageslavery.org> wrote:
> ok i installed the extension and captured some data..  here is what the
> header looks like when i click the signout button:
>
> Set-Cookie: user_name=matt; expires=Mon, 22-Jan-2007 01:54:01 GMT
>
> then when i go back to the home page, my code reads the cookies to see if
> the cookie called 'user_name' exists, and if so, logs me in and resets the
> cookies:
>
> if cookies.has_key('user_name'):
>         cookie = Cookie.Cookie('user_name', user_name)
>         cookie.expires = time.time() + 31536000
>         Cookie.add_cookie(self.req, cookie)
>
> i thought maybe i need to check the expiry date of the cookie, so i tried
> that with the following code:
>
>         self.req.write(str(cookies['user_name']) + '<br>\n')
>         self.req.write('expires: ' + cookies['user_name'].expires + '<br>\n')
>
> but that throws the following error:
>
>         File "/usr/lib/python2.5/site-packages/mod_python/Cookie.py", line 93,
>         in get_expires
>                 return self._expires
>
>         AttributeError: _expires
>
> - [email protected]
>
> > Have you checked what the actual cookie header returned to the browser
> > is and verified that what is in it is what you expect? Post the value
> > of the header here so we can see it.
> >
> > Use FireFox live headers extension to see value of header, or in your
> > mod_python code output to error log file the output of req.headers_out
> > or req.err_headers_out to see what it is.
> >
> > Graham
> >
> > On 22/01/2008, Matt Barnicle <mattb at wageslavery.org> wrote:
> >> > 21 January 2008 Monday 10:49:57 tarihinde Matt Barnicle þunlarý
> >> yazmýþtý:
> >> >> understand it, if i want to effectively remove a cookie from the UA,
> >> there
> >> >> is no way to do it, so u just have to set the expiry date to a time
> >> in the
> >> >> past, right?  but any efforts i make seem to fail.  here is the code:
> >> >>
> >> >> cookie = Cookie.Cookie('user_name', cookies['user_name'].value)
> >> cookie.expires = int(time.time()) - 31536000 # minus 1 year from now
> >> Cookie.add_cookie(self.req, cookie)
> >> >
> >> > Might be a problem of using int(), examples in the mod_python
> >> > documentation don't use int():
> >> >
> >> > http://www.modpython.org/live/current/doc-html/pyapi-cookie-example.html
> >>
> >> i first tried it exactly like in the docs, then i tried int bc i know
> >> the
> >> official way to do it is to use int seconds since GMT...  i also tried
> >> splitting time.time() on the period, and taking the int value of the
> >> first
> >> bit.  anyways it works ok when i log in then i check my cookies using
> >> firefox web developer toolbar, it just doesn't seem to want to expire
> >> the
> >> cookie when i use this method..
> >>
> >> - [email protected]
> >>
> >>
> >>
> >> _______________________________________________
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> >> Mod_python at modpython.org
> >> http://mailman.modpython.org/mailman/listinfo/mod_python
> >>
> >
>
>
>



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